Credit Card Interest Calculator | Calculate Interest Costs

Credit Card Interest Calculator

Calculate how much interest you'll pay on your credit card balance and see how different payment amounts affect your total cost and payoff time.

Calculate Interest

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Cards with 0% APR

Ink Business Cash® Credit Card

Chase Bank

0% APR for 12 months
$0

Ink Business Unlimited® Credit Card

Chase Bank

0% APR for 12 months
$0

Citi® Diamond Preferred® Card

Citibank

0% APR for 12 months on purchases
$0

Blue Cash Preferred® Card from American Express

American Express

0% APR for 12 months
$0 intro annual fee for the first year, then $95.

Capital One Savor Cash Rewards Credit Card

Capital One

0% APR for 15 months
$0

Wells Fargo Active Cash® Card

Wells Fargo

0% APR for 12 months from account opening
$0

Chase Freedom Unlimited®

Chase Bank

0% APR for 15 months
$0

Blue Cash Everyday® Card from American Express

American Express

0% APR for 15 months
$0

Wells Fargo Reflect® Card

Wells Fargo

0% APR for 21 months from account opening
$0

Bank of America® Travel Rewards credit card

Bank of America, N.A.

0% APR 15 billing cycles
$0

The American Express Blue Business Cash™ Card

American Express

0% APR for 12 months from date of account opening
No annual fee

Capital One Quicksilver Cash Rewards Credit Card

Capital One

0% APR for 15 months
$0

American Express® Business Gold Card

American Express

0% APR for 6 months from date of account opening
$375

The Blue Business® Plus Credit Card from American Express

American Express

0% APR for 12 months from date of account opening
No annual fee

Reflex® Platinum Mastercard®

Continental Finance

0% Fixed APR
$75 - $125

Surge® Platinum Mastercard®

Continental Finance

0% Fixed APR
$75 - $125

FIT™ Platinum Mastercard®

Continental Finance

0% Fixed APR
See terms

The New United Gateway℠ Card

Chase Bank

0% APR for 12 months
$0

Choice Rewards World Mastercard®

First Tech Federal Credit Union

0% - 18.00% Variable APR
$0

Platinum Secured Mastercard®

First Tech Federal Credit Union

0% Variable APR
$0

Bank of America® Business Advantage Cash Rewards Mastercard®

Bank of America, N.A.

0% APR 9 billing cycles
$0

Capital One VentureOne Rewards Credit Card

Capital One

0% APR for 15 months
$0

Bank of America® Business Advantage Travel Rewards World Mastercard®

Bank of America, N.A.

0% APR 9 billing cycles
$0

USAA Eagle Navigator® Credit Card

USAA Federal Savings Bank

0% Variable APR
$95

Bank of America® Business Advantage Unlimited Cash Rewards Mastercard®

Bank of America, N.A.

0% APR 9 billing cycles
$0

Discover it® Miles

Discover Card

0% APR for 15 months
$0

Discover it® Cash Back

Discover Card

0% APR for 15 months
$0

Discover it® Student Cash Back

Discover Card

0% APR for 6 months
$0

Slate Edge℠

Chase

0% intro APR for 18 months
$0

State Farm Good Neighbor Visa®

U.S. Bank

0% Intro APR for 18 billing cycles
$0

Frequently Asked Questions

Get answers to common questions about credit card interest and how it's calculated.

How is credit card interest calculated?

Credit card interest is typically calculated using your Annual Percentage Rate (APR) divided by 12 for a monthly rate. This rate is applied to your average daily balance. Interest compounds, meaning you pay interest on previously charged interest.

What is APR?

APR (Annual Percentage Rate) is the yearly interest rate charged on credit card balances. It includes both the interest rate and other costs. For credit cards, the APR and interest rate are typically the same.

How can I avoid paying interest?

The best way to avoid credit card interest is to pay your full balance by the due date each month. Most cards offer a grace period between the statement closing date and the due date where no interest is charged if you pay in full.

Why did my interest charge increase?

Interest charges can increase if: 1) Your balance increased, 2) Your APR increased, 3) You made a late payment, or 4) You're being charged interest on interest (compounding).

What's a good APR for a credit card?

The average credit card APR is around 20%. Anything below 18% is considered good, while rates below 15% are excellent. However, the best strategy is to pay your full balance each month to avoid paying any interest.